Both of the bowls are Murano, but Dino Martens didn't have anything to do with them. According to Marc Heiremans, Martens didn't have do any of the "tutti frutti" designs that are sometimes attributed to him.

Hello Anita!Thanks for your answer. Very often there are indeed also glass paperweights on ebay, which are attributed to Dino Martens. Do you know, if he ever designed which (would have then probably executed by Aldo Bon)?